2. The cost of 12 fans is 19255.60. Find the cost of each fan. 8. A tin holds 16.5 litres of oil. How many such tins will be required to hold 445.5 litres of oil? 9. The cost of 4 dozen pens is 794.40. Find the cost of each pen. 10. The product of two decimals is 370.52. If one of them is 23.6, find the other. 11. Along distance telephone call between New Delhi and London, costs 503.25 for 30.5 minne What is the rate of call per minute? 13. If each side of a regular polygon is 7.32 cm and its perimeter is 109.80 cm, then find the numbe 12. An athlete ran 11.4 km in 1.2 hours. Find the speed of the athlete. 14. A car covers a distance of 108.9 km in 1.8 hours. What is the average speed of the car? sides of the polygon.
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1,12 fans cost= RS 9255.60
1 fan cost = 9255.60÷12. =771.3
Therefore, Each fan cost is RS 771.3
2,How many such tins will be required to hold 478.5 Litres of oil? 16.5÷478.5=29 tins.
3,1 dozen = 12
therefore 4 dozen = 4 × 12
cost of 1 pen = 794.40 / 4× 12 = 16.55
4,divide divide 370.52 by 23.6
you will get the other number by dividing we get the answer 15.7
5,total cost for 30.5 minute =503.25
then, per minute charge =cost of 30.5minute /30.5
so,503.25/30.5=16.5
the rate of call per minute =16.5
6,109.8/7.32=15
the polygon is of 15 sides
7,What is the average speed of the car? 60.5 km/h.
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